The Dynavision apparatus was developed to measure and train a number of psychomotor s u s , including visual scanning, peripheral visual awareness, and visuomotor reaction time (Performance Enterprises, 1992). Although several rehabilitation and human performance centers currently use the apparatus in occupational therapy and sport-related training, no reports of reliability have been published...

Three sources of variation in experimental results for a test are distinguished: trials, persons, and items. Unreliability is defined only in terms of variation over trials. This definition leads to a more complet~ analysis than does the conventional one; Spearman’s contention is verified that the conventional approach--which was formulated by Yule--introduces unnecessary hypotheses. It is emph...

The test-retest reliability of three Dynavision tasks of graded difficulty was estimated as high, with intraclass R correlation coefficients ranging from .88 to .97, and paired correlation coefficients ranging from .74 to .92. Recommendations are made for reliable testing procedures.

This study examined the psychometric properties (i.e., reliability and validity) of Digital Scale Perceived Motor Competence (DSPMC) in preschool-aged children. One hundred eighteen children (Mage = 4.5) completed Study 1 on internal consistency test-retest reliability, 87 2 construct validity. results support that DSPMC demonstrates an acceptable at both initial (α 0.78) retest 0.75) good (ICC...